• Program

      • CPIRD
      • DTM&H
        • Core Courses
        • Elective Courses
      • MCTM
        • Elective Courses
      • MCTM(TP)
        • Elective Courses
      • MSc(SchoolHealth)
      • MSc(TropMed)
        • Core Courses
        • Elective Courses
        • Required Courses
          • Biochemical Nutrition
          • Immunology
          • Microbiology
          • Molecular Tropical Medicine
          • Parasitology and Medical Entomology
      • Ph.D.(CTM)
      • PhD(TropMed)
      • Instructor
        • Courses
    • Login
TM-Online
    • Program

      • CPIRD
      • DTM&H
        • Core Courses
        • Elective Courses
      • MCTM
        • Elective Courses
      • MCTM(TP)
        • Elective Courses
      • MSc(SchoolHealth)
      • MSc(TropMed)
        • Core Courses
        • Elective Courses
        • Required Courses
          • Biochemical Nutrition
          • Immunology
          • Microbiology
          • Molecular Tropical Medicine
          • Parasitology and Medical Entomology
      • Ph.D.(CTM)
      • PhD(TropMed)
      • Instructor
        • Courses
    • Login

Reply To: Cockroaches and bugs_Lab

Home › Forums › TMEN 513: Medical Entomology › Cockroaches and bugs_Lab › Reply To: Cockroaches and bugs_Lab

11/02/2022 at 21:52 น. #19545
RATTANALAK JITTUNGDEE
Participant

TMEN513 Lab exam: Cockroaches and bugs
Name: Rattanalak Jittungdee ID:6438165

Question1: Please describe how you identify the cockroaches (selecting at least two species)
Answers:
1.Periplaneta americana (American cockroaches): is the largest of the house-infesting roaches and a major pest in the United States. we can identify by;
– Color: typically reddish-brown with a yellowish band on the back of the pronotal shield.
– Legs: They have 6 legs
– Shape: Oval
– Size: Adults may range between 1 1/4” to 2 1/8” (32-54 mm) in length
– Antennae: Filiform antennae
– Region: American cockroaches are found worldwide
2.Neostylopyga rhombifolia (Harlequin cockroaches): originated in Indo-Malaysia, found in the northern part of Australia, Mexico, and also found in South California. we can identify by;
– The length varies from 20 to 27 mm.
– The tegmina (forewings) of both sexes are small lobes, only about 4 mm long, and hind wings are entirely lacking.
– Its distinctive colors and patterns make this roach one of the most beautiful species kept as a pet by many enthusiasts around the world.
– Very fast in its movements this species is an egg layer and can climb smooth surfaces.
– In optimal conditions females can lay a large quantity of ootheca (egg case) containing about 15-30 eggs each.
– Juveniles have a tan uniform color, molt after molt they acquire the characteristic design that distinguishes adults.
– The Harlequin Cockroach has the ability to produce a chemical (amyl acetate) that smells like pear drops which it uses to defend itself against predators, therefore it would not be a good choice to use it as feeders for reptiles and amphibians.

Question2: What is the difference between genus Triatoma and Rhodnius?
Answers: The difference between genus Triatoma and Rhodnius are;
Triatoma spp.:
– antennae arise from the sides of the head at the middle, between eyes and the tip.
Rhodnius spp.:
– antennae arise from the sides of the head at the anterior end.

Search

February 2023
S M T W T F S
 1234
567891011
12131415161718
19202122232425
262728  
     

Who’s Online

There are no users currently online
66(0) 2354-9130 ext 1532
Mahidol Bangkok School of Tropical Medicine, 3rd Floor, Chamlong Harinasuta Building
info : tmbstm@mahidol.ac.th
DAILY: 08:30 AM – 4:30 PM SAT-SUN & HOLIDAYS: CLOSED

logo mu school-01
TM_60th(ENG)_(A4)

TM-Online.org © 2020 . All Rights Reserved. Powered by BHIteamOnline.

Login with your site account

Lost your password?